Could it be Anemia/what is wrong with me?

I would greatly appreciate it if no one says “You’re fat,that’s the problem” or anything snarky such as that.
When I stand, my body is like a ton of bricks. I’m always tired yet it takes me hours to get to sleep. I usually don’t until 4–5 in the morning. I get temple headaches and my eyes hurt quite often. I’ve researched Anemia and done the “pull your eye lid down and check the color” tests. The inside of my eye lid is very light pink (The internet said that if they were pale you had anemia. I didn’t know if that meant pale as in pale pink or pale in comparison to your skin color).. As you can see in my profile picture my skin is quite pale (Using that word too much..) To sum it up, I never feel “good”. I never feel like moving more than I have to. When I excercise I get tired very easily. What could this be?